uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/build-support/expand-response-params/default.nix

@@ -0,0 +1,21 @@
+{ stdenv }:
+
+stdenv.mkDerivation {
+  name = "expand-response-params";
+  src = ./expand-response-params.c;
+  strictDeps = true;
+  enableParallelBuilding = true;
+  # Work around "stdenv-darwin-boot-2 is not allowed to refer to path
+  # /nix/store/...-expand-response-params.c"
+  unpackPhase = ''
+    cp "$src" expand-response-params.c
+    src=$PWD
+  '';
+  buildPhase = ''
+    NIX_CC_USE_RESPONSE_FILE=0 "$CC" -std=c99 -O3 -o "expand-response-params" expand-response-params.c
+  '';
+  installPhase = ''
+    mkdir -p $prefix/bin
+    mv expand-response-params $prefix/bin/
+  '';
+}